Method for the purification of 1-aminopropanediol-2,3

Details Method for the purification of 1-aminopropanediol-2,3 Method for the purification of 1-aminopropanediol-2,3

1995-03-27

1996-09-17

Manoharan, Virginia

Distillation: processes, separatory

Vaporization zone under positive pressure or vacuum

159 49, 159DIG16, 202158, 203 89, 203 99, 564507, B01D 310

Patent

active

055565166

ABSTRACT:
1-aminopropanediol-2,3 containing 2-aminopropanediol-1,3 of less than 0.30% by weight can be prepared by the present purification process, which involves distilling a 1-aminopropanediol-2,3 containing at least 0.3% of 2-aminopropanediol-1,3 based on the weight of 1-aminopropanediol-2,3 using a distillation column, said distillation column having low pressure loss.

REFERENCES:
patent: 2226534 (1937-04-01), Lichty
patent: 4356323 (1982-10-01), Kleemann et al.
patent: 4358615 (1982-11-01), Kleemann et al.
patent: 4360697 (1982-11-01), Kleemann et al.
patent: 4503252 (1985-03-01), Felder et al.
patent: 5023379 (1991-06-01), Felder et al.
patent: 5053545 (1991-10-01), Marman et al.

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